great upgrade for old style 2-D flashlights, You know the ones everyone has sitting in the kitchen drawer with the dull or burned out bulb you forgot to replace. I put one of these in an 80\'s Duracell 2D flashlight and was amazed how much brighter it is than the PR blulb I took out. Next I put 1 in my 6 Volt handheld Lantern that the PR-13 bulbs never last now 2 6-Volt Lantern batteries should last for days during the summer power outages. $12 is a bargain for a Lantern that lasts for days

Not sure whether or not this upgrade will fit in your Maglite? Simply refer to this illustration to determine if the upgrade will fit your flashlight!